** Tags added: sts sts-sponsor -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu. https://bugs.launchpad.net/bugs/1529815
Title: InfiniBand DHCP flow with PRA and DHCP relay not working Status in isc-dhcp package in Ubuntu: In Progress Status in isc-dhcp source package in Trusty: In Progress Status in isc-dhcp source package in Wily: In Progress Status in isc-dhcp source package in Xenial: In Progress Bug description: [Impact] * Infiniband users relying on DHCP can't use DHCP relay. [Test Case] * Comment #13 * Mellanox has tested themselves. * Clear way of knowing if fix worked (tcpdump). [Regression Potential] * Only related to Infiniband. * Infiniband support could stop working (unlikely, already tested). [Other Info] None [ Original Description ] * Anything else you think is useful to include * Anticipate questions from users, SRU, +1 maintenance, security teams and the Technical Board * and address these questions in advance DHCP client is sending discover with Unicast type request for the offer, in this configuration of IB to ETH through a relay we need the type to be broadcast. The issue is that when using dhclient from the client on Ubuntu (and only on Ubuntu) with MOFED or inbox driver, we see that that DHCP server offers in unicast instead of broadcast. It seems there is no way to correct this from the client side using dhclient configuration file. this issue exist even when we use always-broadcast statement in configuration file. in other vendors we see that discover request type is broadcast. attached pcap files from working (other vendor) and not working (Ubuntu) clients. DHCP CLIENT (IPoIB) Ubuntu 14.04 kernel 3.13.0-74 Mellanox OFED 3.1-1.0.3 or inbox driver isc-dhcp-client 4.2.4-7ubuntu12.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1529815/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
